diff --git a/exam/grading_helper.ods b/exam/grading_helper.ods
index a35f19b..1424c0c 100644
Binary files a/exam/grading_helper.ods and b/exam/grading_helper.ods differ
diff --git a/other/ideas.md b/other/ideas.md
index 5c29687..18b05b6 100644
--- a/other/ideas.md
+++ b/other/ideas.md
@@ -26,9 +26,13 @@
   maybe I could make the students work in groups of 2. The chance of having
   free-loaders lowers by a lot. And then I could pull the cases grade up to 75%
   and the exam would only by 25%.
+- For the part that is strictly related to mathematical programming, I would
+  like to do something with Gurobi materials. That way I can learn about it,
+  students learn about Gurobi and Helena will be happy.
 - For next year, I want to include a few additional ideas in the first welcome
   class:
     - Publish the grades from Avaldo and show them to the new students.
     - Give a lessons learnt from last year to students (what did successful
       students do, what did students that failed do)
-    - Show places where students from last year are today (Iker, Ivan, Marc, etc)
+    - Show places where students from last year are today (Iker, Ivan, Marc,
+      etc)